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elena-s [515]
3 years ago
15

A group of workers can plant at a rate of 12 acres per day.

Mathematics
2 answers:
ivann1987 [24]3 years ago
8 0

Answer:

36 acres

Step-by-step explanation:

Number of acres plant in a day = 12 acres

Number of acres plant in 3 days = 12 × 3

= 36 acres

Rashid [163]3 years ago
4 0

Answer:

36

Step-by-step explanation: if they do 12 acres per day.. it would be 36 for three days. 12x3=36

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Please help me with these 5 problems!!!
zalisa [80]

1. let the score on 1st test be = x

Given average is = 92

2nd tests scores are = 97 (assume this as y)

3rd test score = 89 (assume this as z)

Average = \frac{x+y+z}{3}

92=\frac{x+97+89}{3}

276=186+x

x=90

Hence, 1st day score was 90.

2. Let the original recipe made x cookies

As given she doubled her recipe so 2x cookies

Her brothers ate 8 cookies, this gives 2x-8 cookies left

She gave 2 dozen or 24 cookies to the neighbor and left with 12 cookies, it becomes 2x-8-24=12

This gives 2x=44

or x=22

Hence 1 recipe makes 22 cookies.

3. As given in the table,

Time used in total by boys = 255 minutes

Time used by girls in total = 213 minutes

Time used for school work by boys = 33 minutes

Time used by boys other than schoolwork = 255-33 = 222 minutes

Time used for school work by girls = 72 minutes

Time used by girls other than schoolwork = 213-72 = 141 minutes

How many more minutes per week do boys spend using the internet for purposes other than schoolwork then girls = 222-141 = 81 minutes

Hence, boys use 81 more minutes than girls for work other than schoolwork.

4. Total amount by two films = $775 million

Let x be the receipts of the second highest box office film.

Let x + 97 be the receipts of the highest one.

Equation becomes x+x+97=775

2x+97=775

2x=678

x=339

Hence highest receipt movie brought in 339+97=436

The film with highest receipts bought in $436 million.

5. Vice President elected in the year = 1944

Died in the year = 1972

Total time in between  = 1972-1944=28 years

Age at the time of death = 88

So, he was  elected 28 years back and that time his age was = 88-28=60

He was elected at the age of 60 years.

6 0
3 years ago
Stonehenge is one of the most famous historical sites in the world. It is believed to
julia-pushkina [17]

Answer: Radius is 15.9975 meters.

Step-by-step explanation:

The formula to find radius of circle is r=\sqrt{A/\pi } so plug in our known variables and solve...

r=\sqrt{804/\pi }

r=\sqrt{255.9211}

r=15.9975

8 0
3 years ago
Determine the quadratic regression for the data.
Komok [63]

{ solution is attached below}

7 0
3 years ago
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Janie is analyzing a quadratic function f(x) and a linear function g(x). Will they intersect?
UkoKoshka [18]

Answer:

Option (D) is correct.

No, They will not intersect.

Step-by-step explanation:

Given Points for g(x), (1,2) , (2,4) and (3,6)

Since g is a linear function then it must be in form of  g(x) = mx +c where, c is constant and m is slope.

We first calculate the slope using,

m=\frac{y_2-y_1}{x_2-x_1}

Here, consider x_1=1 , x_2=2 , y_1=2, y_2=4

Substitute above, we get slope as,

m=\frac{4-2}{2-1}=2

Thus, equation becomes g(x) = 2x + c  ...(1)

For c plug the values  in (1),

(1,2) ⇒ 2= 2 + c ⇒  c = 0

Thus, Equation of G(x) is 2x.

When we plot it it do not intersect f(x).

Thus, Option (D) is correct.

No, They will not intersect.




3 0
3 years ago
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Sveta_85 [38]
This should help you on how to get the zeros and the answer for the bottom question is A

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2 years ago
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